Spark-arrester



NMde1') C. s. GOLVILLE.

ASPARK ARRESTER.

No. 319,457. Patented June 9, 1885.

r l 1 l UNITED STATES PATENT OFFICE.

CHARLES S. COLVILLE, OF NEWARK, OHIO.

SPARK-ARRESTER.

SPECIFICATION forming part of Letters Patent No. 319,457, dated .Tune 9, 1885.

Application filed November 15, 1894. (No model.)

To a/ZZ whom it may concern:

Be it known that I, CHARLES S. CoLvILLE1 21 ClbZeIl of the United States, residing at Newark, in the county of Licking and State of Ohio, have invented certain new and useful Improvements in Spark-Arresters; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilledin the art towhich it appertains to make and use the same.

My invention relates to that class of sparkarresters of steam-boiler furnaces in which the sparks or solid matters are arrested at or near the upper end ofthe smoke-stack and conveyed to a suit-able receptacle by means of a returnilue, while the smoke is allowed to escape into the open air; and it consists of a certain novel combination and arrangement of parts, which will be fully described in the ensuing specilication, and specifically pointed out in the claim at the close thereof.

In order that my invention may be clearly understood, I have illustrated in the annexed drawings and will proceed to describe the best forni thereof at present known to nie.

Figure 1 represents an elevation of my improved spark arrester as it appears when viewed from the rear end of the boiler. Fig. 2 is a vertical cross-section of the same.

The same letters of reference indicate identical parts in both the figures.

The sheet-iron smoke-stock A is mounted on the smoke-box of a steam-boiler in the ordinary manner, and is provided at or near its upper end with two branch pipes, B B, located on opposite sides of the stack A, which branch pipes are contracted somewhat at their upper ends, and discharge into two uptakes, (l C, on opposite sides of a hopper, D. The contraeted ends of the branch pipes project a short distance into the flaring lower end of the uptakes, and are separated therefrom by bracerod c, as shown in Fig. 2, to allow the smoke to pass into the open air, while the sparks or solid matters are carried upward into the hopper by the force of the exhaust-steam. This hopper D is provided at its upper end with a deiiector, E, which extends down into the hopper D far enough to prevent sparks from being blown from one side to the other. The bottom of the hopper is funnel-shaped, and is connected with a return-flue, F, which serves to convey the sparks or solid matters to anyr suitable receptacle. I have shown this returnfine as being partly within the smoke-stack; but it is obvious that it may be wholly outside thereof.

I have described a spark-arrester provided with two branch pipes; but it is evident that there may be three or more, together with a corresponding number of uptakes.

rIhe whole apparatus may be surrounded by a fine wire screen, as shown in Ilig. 2.

I claim as my invention- In a spark-arrester, the combination, substantially as before set forth, of the smokestack, the branch pipes leading therefrom, the uptakes open at their lower ends and encircling the upper ends of the branch pipes, the hopper at the upper ends of the uptak'es and constructed with a dedector, and the returnflue.

In testimony whereof I affix my signature in presence of two witnesses.

CHARLES S. COLVILLE.

Witnesses:4

H. L. PEUR, GEORGE P. WEBB. 

